/Engine/Source/Runtime/Engine/Classes/PhysicsEngine/ConstraintInstance.h
void DrawConstraint ( [FPrimitiveDrawInterface](API\Runtime\Engine\FPrimitiveDrawInterface) * PDI, float Scale, float LimitDrawScale, bool bDrawLimits, bool bDrawSelected, const FTransform & Con1Frame, const FTransform & Con2Frame, bool bDrawAsPoint ) const